40423993339 has 2 divisors, whose sum is σ = 40423993340. Its totient is φ = 40423993338.

The previous prime is 40423993331. The next prime is 40423993433. The reversal of 40423993339 is 93339932404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40423993339 - 2³ = 40423993331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40423993292 and 40423993301.

It is not a weakly prime, because it can be changed into another prime (40423993331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20211996669 + 20211996670.

It is an arithmetic number, because the mean of its divisors is an integer number (20211996670).

Almost surely, 2^40423993339 is an apocalyptic number.

40423993339 is a deficient number, since it is larger than the sum of its proper divisors (1).

40423993339 is an equidigital number, since it uses as much as digits as its factorization.

40423993339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 49.

The spelling of 40423993339 in words is "forty billion, four hundred twenty-three million, nine hundred ninety-three thousand, three hundred thirty-nine".